Dark sim is one of the deadliest skills in PvP, you could steal pally wings, HoJ, mirror image, all of those insanely useful spells. Never say it never works.

I agree with you in the pve sense though, it's fairly useless in pve, but it was designed to be a pvp-oriented spell.

Walking with a friend in the dark is better than walking alone in the light.So I chose the path of the Ebon Blade, and not a day passes where i've regretted it.I am eternal, I am unyielding, I am UNDYING.I am Zethras, and my blood will be the end of you.

DS is fine in PvP if you're quick on the trigger. I've stolen so many useful spells, plenty of which have saved my life in the end such as shields, interrupts, silences, freezes, stuns, invulnerability...the list goes on.

My only issue with dark sim (in PvE) is how random the scaling is on abilities on dungeons. I hate how I can copy a pyroblast that hits for 200 but then copy a holy fire that does 100k. Obviously that can be solved by knowing which ones hit like pillows, but it'd be nice to have more consistency with being able to do damage with dark sim.

I've been anxiously trying it for PvE in MoP and I'm sad to say it's been very uneventful. I'm very close to removing it from my bar entirely. Much like Control Undead and how amazing it is and how little of an opportunity in MoP I have to use it. Once I step out of Pandaria however I'm enjoying it quite a lot.

ds is pretty useless in mop now.. so is control undead.. one time i was running that end time dungeon as a dk tank and we got sylvanas trash.. i was able to steal and mc an elite ghoul that hit 200k per swing for 5 mins.. that was decent.. but in mop theres almost no dead minions to steal.. proly aside from scholomance.. anyway

ds has almost no useful abilities in pve.. it'd be nice if it gave a buff like 10% more dmg dealt for 10 seconds if no buff was stolen.